the 17U looking thing that's more reminiscent (size wise) of the more traditional SGI "deskside" looks like it can handle 8-16 ia64's (wonder what happens when intel makes DC (UP [uni-{package, core}]) ia64's, 4-8 graphic pipes, and up to 192 GB of RAM
here's the brocure for desk-cube model
http://www.sgi.com/pdfs/3800.pdf
1-2 procs 1.3-1.6 GHz 3MB L3 (ia64-2's come with 3, 4, 6, & 9 MB L3)
internal SATA, a dvd-rom, 5 usba-2 ports (device support should be good as it's linux)
as for software, the paper specifically lists gnome, kde, and openoffice... sorry, I just have to roll my eyes, as... well, it's about as little as they could offer. what does this offer that sgi's competitors can't offer... a dynamic MIPS binary translator, and probably NUMALink that's disabled... good, I suppose if you're a big SGI shop with a large SGI altix multi-node supercomputer...
*edit* oh, it has two 8x AGP slots so you can have two 32 bit per component ATI workstation cards... although you're limited to 256MB it looks like, because graphics card makers have brought to the public a gaming 512MB card that is totally and utterly pointless, but they haven't brought out, to my knowledge, a 512MB workstation card. I'm not a cad/cam guy, or a 3d modeler or anything, but I'd think that they did that the wrong way around.
*edit 2* and in other news, HP's discontinued it's zx6000... as one ia64 star burns out, another starts to shine... or something